A microcontroller (MCU for microcontroller unit, or UC for μ-controller) is a small computer on a single integrated circuit. In modern terminology, it is similar to, but less sophisticated than, a system on a chip or SoC; an SoC may include a microcontroller as one of its components. A microcontroller contains one or more CPUs (processor cores) along with memory and programmable input/output peripherals. Program memory in the form of ferroelectric RAM, NOR flash or OTP ROM is also often included on chip, as well as a small amount of RAM. Microcontrollers are designed for embedded applications, in contrast to the microprocessors used in personal computers or other general purpose applications consisting of various discrete chips. Microcontroller(MCU) are available at our website. We offers quality supplier,quality products,product documents.
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1. See if the suppliers are verified and how long they have been in hqew.net, we will check if the supplier and their products are high-quality again every year. And we will give them a note in their shop. Don’t hesitate to consult us if you have any questions.
2. Look at the print. Most of the chips are printed by laser or printed by special chip printer. The handwriting is clear, not obscure and hard to erase.
3. Look at the pins. All bright and new tin pins must be refurbished. Most of the pins of IC should be the silver powder feet, which is dark but uniform.
4. See if there is any trace on the surface of the chip.
5. Measure the thickness of the device and look at the edge of the device.
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